Published at 3:49 PM CDT on Jul 29, 2009 | Updated at 5:02 PM CDT on May 28, 2009

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Even though they graced the face of Brad Pitt, chances are they didn't cost more than a latte to make.

A pair of sunglasses can cost anywhere from $10 to hundreds. While materials and design can make up for some of that difference, one marketing expert reveals that pair on your head probably doesn’t cost more than $3 to produce.

You could feed a family for a month on what some people are paying for sunglasses.

But when it all comes down to it, what are you really paying for when you buy a pair of shades?